Fuel pum replacement

30

Asked by Noel121372 Oct 27, 2018 at 11:29 PM about the 2003 Audi TT 3.2T quattro Roadster AWD

Question type: Maintenance & Repair

I just replaced a fuel pump on a 2003 tt
quatro turbo. Once i was done i try to start
the car up and it cranks but it wont start.
What did i do wrong?

18 Answers

9,520

Is the pump running? Have someone listen at the fuel filler as you cycle the key the pump should run then shut off every time you turn the key

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30

No i dont hear it the pump.. im thinking that it might bevthe relay.. i kind of forgot to disconnect the battery in the process.. also does the computer need to be reset on 2003 audi tt quatro turbo

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30

What do i need to do to make it go. Everything is connected, all wires and connectors. I checked fuses and changed fuel filter. I did everything by the book. I dont think i made any mistake installing it..

9,520

Do you know how to jumper the relay? If so jump it then go back and listen if it's not running start checking the wires especially at the pump leave the jumper in while you pull and tug on harnesses to locate a bad connection.

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9,520

Are you working on it now? If you are I'll pay closer attention to this site.

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30

No its 10:46 pm here and im in bed trying to brain storm it. I wil again first thing tomorrow. HOW DO YOU JUMPER THE RELAY??

9,520

12:45 here there are 4 terminals on the relay 2 of them are bigger than the other 2 remove the relay use a short piece of wire to jumper the 2 large terminals together then listen for the pump. If it's running replace the relay. if not start looking for a bad wire at the tank and move forward don't forget the ground

30

Also?? I need to emptybout the gas tank. Whats the best way and quickest way to do that with out syponing.

9,520

Use the fuel pump. Locate the fuel injection test port, remove the plastic cap then remove the schraeder valve put a fuel hose over the fitting and the other end into a gas can then jumper the fuel pump. You may want to put a charger on the battery if there's a lot of fuel in the tank. Listen carefully so you don't run the pump totally dry. It doesn't take long to empty the tank

30

Wheres the injection test port on the 2003 audi tt quatro roadster.. please send picture

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9,520

That's probably the right one, follow the fuel lines to the fuel rail the service port looks like a A/C fitting there are some cars that use special service tools to tap into the injection system, you can call the dealer to find out.

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